Mot-clefs : 即時(shí)(shí)(shí)(shí)通訊___________，企業(yè)(yè)(yè)(yè)溝通________，龍笛即時(shí)(shí)(shí)(shí)通_，視頻會(huì)(huì)(huì)議__，集成開發(fā)(fā)(fā)(fā)_，金笛短信